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Format of Code. Types of Code and Breakdown Levels. In consideration of the various requirements placed on the identification of plants, sections of plants and . Assignment of System Codes to Mechanical Equipment and Measuring Circuits. .. Brüter – Kernkraftwerkgesellschaft mbH • Siemens AG, Corporate Groups E. The Siemens Kraftwerk-Kennzeichen-System (KKS), abridged version, stations , KKS has three different types of code: Process-related code Process-related.

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AN numbering may be consecutive or grouping. Subdivide for this aim the panel elevation into planes: Mechanical Supports Supports may be identified using the system code or the structure code. The first digit is often used to point the kind sort of component designated in B1 B2.

Log In Sign Up. Transducer Racks, Supports, Frames This auxiliary equipment is identified on breakdown level 1 using the code for the equipment location structure codewith the exception of auxiliaries for main machine sets and heavy machinery system code.


The numerical digits count and subdivide the unit e. Further applications are subject to agreement between the parties to the project.

If several process-related systems are situated in one structure we designate this structure siemehs to the main, most important system. The origin and development of KKS The origin of the letters used in it is in German language, namely: On breakdown level 2 supports should be identified by BQ.


Component Code A component designated in breakdown level 3 is a part of equipment unit identified in breakdown level 2. Special Rules for Civil Engineering Spaced notation promotes the comprehensibility and mnemonic quality of codes.

Introduction Identification System is based on the Kraftwerk – Kennzeichen – System KKS This System is the basis for the standard and clear identification of all installations and subsystems in power plant. A Grid and distribution systems B Power transmission and auxiliary power supply C Instrumentation and control systems D Instrumentation and control systems E Conventional fuel supply and residues disposal F Handling of nuclear equipment G Water supply and disposal H Conventional heat generation J Nuclear heat generation K Nuclear auxiliary systems L Steam, water, gas cycles M Main machine sets N Process energy supply for external users e.

Total plant Serial no.

Additional numbering code Serial no. S — Ancillary systems Where individual structures for which separate structure codes exist are combined to form one structure, that structure is given the code of the most important individual structure. For example we can identify here: Calculation of new value on base of 2 variables, e. AK over a separate position code is to be established, siemenw. The next counting signs of the circuit does not change when is creating only one combined variable.


Installation Space Code Serial no. Coding letters and designations of the main groups F1 as given in the Function Key: The origin and development of KKS It is absolutely essential for the parties participating in the construction and operation of a power plant to agree upon a standard system for the designation and classification of the plant, its part and components.

In case of single closed regulation circuits, it is divided into 2 parts: Generally valid rules siemns the use of FN numbering are not expedient. Such established grid after addressing can state the coordinate system.


Subsequent isolation and pressure equalization valves in the measuring circuit are components of the measuring siemene and therefore classified as KA. Equipment unit classification Serial no. A — Mechanical equipment Identification Samples CKA Assignment of System Codes to Mechanical Equipment and Measuring Circuits Equipment units are identified according to the system within the interfaces of which they are located.